EP2510169B1 - Tread module - Google Patents

Tread module Download PDF

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Publication number
EP2510169B1
EP2510169B1 EP20100801198 EP10801198A EP2510169B1 EP 2510169 B1 EP2510169 B1 EP 2510169B1 EP 20100801198 EP20100801198 EP 20100801198 EP 10801198 A EP10801198 A EP 10801198A EP 2510169 B1 EP2510169 B1 EP 2510169B1
Authority
EP
European Patent Office
Prior art keywords
module
tread
sub
carrying surface
load carrying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20100801198
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2510169A1 (en
Inventor
John Greaves
Martin Roberts-Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kee Safety Ltd
Original Assignee
Kee Safety Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kee Safety Ltd filed Critical Kee Safety Ltd
Priority to PL10801198T priority Critical patent/PL2510169T3/pl
Publication of EP2510169A1 publication Critical patent/EP2510169A1/en
Application granted granted Critical
Publication of EP2510169B1 publication Critical patent/EP2510169B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/12—Devices or arrangements allowing walking on the roof or in the gutter
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/22—Resiliently-mounted floors, e.g. sprung floors
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
    • E06C1/345—Ladders attached to structures, such as windows, cornices, poles, or the like specially adapted to be installed parallel to the roof surface

Definitions

  • This invention relates to a tread module for use in constructing an internal or external walkway or stairway and to a walkway or stairway incorporating said tread module.
  • JP 2002 364156A An example of a floor decorative material which is rupturable on-site to reduce the size of the material is described in JP 2002 364156A , where a tread module according to the preamble of claim 1 is disclosed.
  • the present invention seeks to provide an improved walkway or stairway and an improved tread module for a walkway or stairway in which at least some of the aforementioned disadvantages of known types of installations and components therefor are mitigated or overcome.
  • the present invention seeks in another of its aspects to provide a tread module which facilitates relative ease of installation.
  • the present invention seeks in yet another of its aspects to provide a tread module which takes account of the need not to present a significant safety hazard.
  • a tread module for a walkway or stairway comprising a body of material which defines a load-carrying surface, said tread module comprising at least two sub-module sections which are formed integrally with one another and inter-connected by at least one severable connecting web formation whereby the tread module may be reduced in size by severance of the severable formation, at least one edge of the tread module being provided with at least one edge protrusion which extends outwards in a direction parallel with the plane of the load carrying surface thereby, in use, to serve to define a spacing between the module and another module or sub-module section against which it is abutted, each of the severable sub-module sections having an edge formation in the form of a flange which extends from the whole of the periphery of the load carrying surface of that section to define together with the underside of the load carrying surface (14) a recess region which is open at said underside surface, said edge formation defining an underside surface of the
  • the body may comprise a moulded or cast material. It may be moulded from a plastics material such as a polyamide (e.g. nylon) or a composite such as glass reinforced polyamide. Other suitable materials include cast aluminium.
  • a plastics material such as a polyamide (e.g. nylon) or a composite such as glass reinforced polyamide.
  • suitable materials include cast aluminium.
  • the body preferably is substantially rigid thereby to resist significant deflection in at least one and preferably each of two mutually perpendicular directions.
  • At least some of the apertures may be intended, in use of the tread module, to act as drainage channels for drainage of rain water from the load carrying surface.
  • apertures may be adapted to locate retention means by which the tread module may be secured to a supporting structure such as part of a roof or a support secured to roof.
  • Said apertures may be adapted to accommodate and provide a reaction surface for the head of retention means, such as a bolt, tapered pin or self-tapping screw, whereby the retention means does not need to protrude above the load carrying surface.
  • a retention aperture may be of a wedge-like shape in longitudinal cross-section; it may define a frusto-conical shaped surface the diameter of which decreases in a direction away from the load carrying surface, or it may be of a stepped cross-section thereby to define between ends of the aperture an annular abutment surface which lies in a plane substantially parallel with the load carrying surface.
  • the body of material defining the load carrying surface may have a thickness direction, being a direction substantially perpendicular to the load carrying surface.
  • the body comprises at least one said recess which is open to an underside surface of the body, that underside surface being substantially parallel with the load carrying surface.
  • Apertures may be defined by moulded or cast tubular formations such that the or each of a plurality of recesses is defined by the space(s) between the tubular formations
  • the severable formations may, for example, be provided substantially midway between two parallel, opposite edges of a body of a substantially square or rectangular shape such that severance of the severable formations results in two tread sub modules of equal dimension, at least as considered in a direction between said opposite edges.
  • it may comprise three sections each severable from one another and which may each be of substantially identical size and shape such that the module may be employed to provide either two sub-modules one of two thirds the depth and the other one third of the depth of the original module, or three sub modules each one third of the depth of the original module, the term depth being used herein to refer to the direction of the tread module between the opposite module edges which are separable from one another.
  • the tread module for a stairway is of a substantially rectangular shape having a width greater than depth.
  • the present invention envisages that advantageously the tread module may be severable into two or more sub module sections each having a greater width to depth ratio than that of the module from which they are formed. Accordingly the tread module may be employed to provide a sub-module of a size which may be employed to complete a length of walkway which is not an exact multiple of the depth of each module. Similarly, for the provision of a steep stairway the module may be reduced in depth to provide stair tread sections of an appropriate, smaller depth.
  • the body of the tread module comprises reinforcing web sections extending between neighbouring apertures and/or between apertures and the flange formation which at least in part surrounds said aperture(s) thereby to provide an enhanced reinforcing effect and resistance to deflection of the tread module when the load carrying surface is subjected to an applied load.
  • one edge of a tread module is provided with two said edge protrusions and preferably said protrusions are spaced apart by a distance corresponding to the spacing of support members to which it is intended that the tread module may be secured.
  • the tread module load carrying surface comprises a plurality of apertures adapted to accommodate retention means for attachment of the module to a reaction surface such as one defined by a pair of elongate support members and preferably two or more of said apertures are spaced apart by a distance corresponding to the spacing of two or more of said aforementioned protrusions provided at an edge of the tread module.
  • the rigidity of the tread module allows it to be supported at two edge regions and, without the need for intervening support, resist deflection when loaded between the edge regions.
  • the load carrying surface may be provided with texturing for slip resistance purposes.
  • the present invention teaches that at least some and optionally all of the apertures may be surrounded by at least one small, raised, rib-like formation.
  • an aperture is surrounded by two or more rib-like formations the ends of which are spaced so that water may drain through that spacing into the aperture.
  • a preferred configuration is that of a square comprising four straight rib sections each spaced from an adjacent section at a corner of the square.
  • a tread module 10 for a walkway or stairway comprises an injection moulded body of glass-filled polyamide and of a substantially rectangular shape having a width direction X a depth direction Y and a thickness in the direction Z.
  • the module is of a non-solid formation comprising a plurality of through-apertures 11, 12 and a plurality of recess regions 13 which open at an underside surface of the module (see Figures 2 & 3 ).
  • Each of the apertures extends from an upper, load carrying surface 14 of the body and is of substantially square profile in plan as viewed in Figure 3 .
  • a majority of the apertures serve as drainage apertures 11 but at each edge region 15 there are three retention apertures 12 for receiving retention means (not shown) such as a self-tapping screw by means of which the tread module may be secured to a supporting structure, typically to a pair of extruded aluminium beams which extend in the direction Y and are spaced apart by a distance corresponding to the spacing of the apertures 12 across the width X of the module.
  • retention means such as a self-tapping screw
  • each drainage aperture is defined by a tubular formation which extends from and is moulded integrally with the material which defines the load carrying surface 14 (see Figures 2 & 5 ).
  • the apertures 11 each extends part way through the thickness of the module in the direction Z.
  • the retention apertures 12 similarly are formed by tubular formations which extend from and are moulded integrally with the load carrying surface, and have a wall thickness 17 as best seen by reference to Figures 4 and 5 .
  • the aperture 12 extends through the entire thickness of the module in the direction Z.
  • the retention apertures 12 are substantially closed at a lower end by a shoulder formation 18 provided with a central aperture 19 for a retention screw, the annular shoulder 18 providing an abutment surface against which the head of a retention member may firmly bear.
  • the tread module 10 comprises three rows of apertures 11, 12 each extending in the width direction X and each associated with a respective one of three sections 20, 21 & 22 of the load carrying surface 14.
  • Each of the load carrying surface sections 20, 21, 22 and the associated apertures defines a sub-module section which is inter-connected to an adjacent sub-module section by integrally moulded and severable connecting webs 23.
  • Each of the sub-modules 20, 21, 22 has integrally moulded therewith a flange formation 24 which depends from the periphery of the load carrying surface section and has a length in the thickness direction Z corresponding to that of the apertures 12.
  • Reinforcing webs 25 extend between adjacent apertures 11, 12 and between each aperture and confronting surfaces of the flange 24 thereby to provide a reinforcing function.
  • One of the longer edges which extends in the width direction of the tread module is provided with a pair of spacers 26 which extend outwards from the flange formation 24.
  • Each spacer 26 is aligned with a respective one of the two series of retention apertures 12 whereby, in use when the tread module is supported by a pair of spaced beams extending under the apertures 12, those spacers will each overlie a respective beam.
  • Slip-resistance for the load carrying surface 14 is enhanced by surrounding each of the apertures 11, 12 with four rib-like formations 27 arranged in a square formation and with one end of each formation spaced slightly from the side of another rib formation thereby to provide small drainage paths 28 for flow of water from the surface of the load carrying surface into an aperture11.
  • pairs of projections 29 may extend downwards from the underside surface of the module.
  • the projections optionally may be positioned to extend from those of the severable webs 23 which are aligned with the retention apertures 12.
  • the apertures at each end of some or each of the rows of apertures, i.e. onwards of the retention apertures 12, may be provided with coloured or reflective inserts thereby to provide users with a safety indication of the useable extent of a walkway or stairway formed using the modules 10.
  • Figure 9 shows an installation comprising a stairway 30 formed from a plurality of the tread modules 10 and a walkway 31 similarly formed from a plurality of the modules and in addition a sub-module 32 formed by severing one of the modules 10 to provide a module of a third the depth of the full module 10 thereby to provide a substantially continuous walkway over a distance which is slightly greater than that which can be wholly occupied by an integral number of the complete modules 10.
  • the modules are secured by means of self tapping screws to transversely spaced tubular support beams 32 and are each unsupported between the beams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Road Paving Structures (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Tires In General (AREA)
EP20100801198 2009-12-07 2010-12-06 Tread module Active EP2510169B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10801198T PL2510169T3 (pl) 2009-12-07 2010-12-06 Moduł podnóżka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0921366.1A GB2475914B (en) 2009-12-07 2009-12-07 Tread module for a walkway or stairway with severable sub-module portions
PCT/GB2010/002221 WO2011070314A1 (en) 2009-12-07 2010-12-06 Tread module

Publications (2)

Publication Number Publication Date
EP2510169A1 EP2510169A1 (en) 2012-10-17
EP2510169B1 true EP2510169B1 (en) 2015-05-06

Family

ID=41642020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100801198 Active EP2510169B1 (en) 2009-12-07 2010-12-06 Tread module

Country Status (5)

Country Link
US (1) US9279256B2 (pl)
EP (1) EP2510169B1 (pl)
GB (1) GB2475914B (pl)
PL (1) PL2510169T3 (pl)
WO (1) WO2011070314A1 (pl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478564B (en) * 2010-03-10 2013-01-02 Kee Safety Ltd Walkway assembly
US9212491B1 (en) * 2015-05-22 2015-12-15 Patrick J. Santini Modular stairway
GB2566252A (en) * 2017-07-13 2019-03-13 Av Coatings Ltd Roof Board
GB2575780B (en) 2018-07-13 2020-08-19 Kee Safety Ltd Walkway installation
US11572253B2 (en) 2019-03-15 2023-02-07 John Sund Incline elevator and modular deck system and methods for the assembly, use and shipping thereof
CN114150834B (zh) * 2021-11-04 2023-09-15 南通市五洲复合材料有限公司 一种高性能全包覆的玻璃钢格栅板及其包覆工艺

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Also Published As

Publication number Publication date
WO2011070314A1 (en) 2011-06-16
GB2475914A (en) 2011-06-08
GB2475914B (en) 2014-03-26
US9279256B2 (en) 2016-03-08
US20120266551A1 (en) 2012-10-25
EP2510169A1 (en) 2012-10-17
GB0921366D0 (en) 2010-01-20
PL2510169T3 (pl) 2015-10-30

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